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Finding the Fourth Proportional to 448,106.56, 618,192.75 and 266,716.78

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Solution

The fourth proportional to 448,106.56, 618,192.75 and 266,716.78 is: 367,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,106.56 : 618,192.75 = 266,716.78 : x
  2. Step 2: Convert to fraction form
    448,106.56/618,192.75 = 266,716.78/x
  3. Step 3: Cross multiply
    448,106.56x = 618,192.75 × 266,716.78
  4. Step 4: Simplify right side
    448,106.56x = 164,882,379,699.35
  5. Step 5: Solve for x
    x = 164,882,379,699.35/448,106.56
  6. Step 6: Final answer
    x = 367,953.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.